January 25 » The British Parliament passes the Constitutional Act of 1791 and splits the old Province of Quebec into Upper Canada and Lower Canada.
February 18 » Congress passes a law admitting the state of Vermont to the Union, effective 4 March, after that state had existed for 14 years as a de facto independent largely unrecognized state.
May 3 » The Constitution of May 3 (the first modern constitution in Europe) is proclaimed by the Sejm of Polish–Lithuanian Commonwealth.
August 26 » John Fitch is granted a United States patent for the steamboat.
September 5 » Olympe de Gouges writes the Declaration of the Rights of Woman and of the Female Citizen.
November 9 » Foundation of the Dublin Society of United Irishmen.
Day of death September 9, 1865
The temperature on September 9, 1865 was about 23.4 °C. There was 8 mm of rain. The airpressure was 76 cm mercury. The atmospheric humidity was 78%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
February 17 » American Civil War: Columbia, South Carolina, is burned as Confederate forces flee from advancing Union forces.
March 2 » East Cape War: The Völkner Incident in New Zealand.
April 14 » U.S. President Abraham Lincoln is shot in Ford's Theatre by John Wilkes Booth; Lincoln died the next day.
April 15 » President Abraham Lincoln dies after being shot the previous evening by actor John Wilkes Booth. Vice President Andrew Johnson becomes President upon Lincoln's death.
May 12 » American Civil War: The Battle of Palmito Ranch: The first day of the last major land action to take place during the Civil War, resulting in a Confederate victory.
December 1 » Shaw University, the first historically black university in the southern United States, is founded in Raleigh, North Carolina.
When copying data from this family tree, please include a reference to the origin: Leo Koster, "Family tree Koster / Coster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster-coster/I6402.php : accessed March 17, 2026), "Willem De Neef (-1865)".
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